1200W rms pro audio and simpe circut.

[engel]

ehran,
you said the amp can stand +/-150vdc,
what if we doubt our output is fake(5200/1943) fake parts surely will fail,can we still use 60-0-60vac?

 

[erhan739]

engel, the driver transistors stands 2x100v dc, it depends 4k7 5w if you set stable 2x15v to op-amp you can each voltages to it. it is right 5200 can't stands 2x150 dc but if you can use 3281 and 1302 or the other high voltaged oputput transistor, you can do it. isn't it ?

 

[erhan739]

2x70v transformer is good works with this. but you shuld set op-amp voltages you can use 5k6 or 6k8 5w rezistor

 

[rosa]

hi rhodrich
greetings well i have used this amp with 2 step h class supply amazing power for such a simple
circuit well the biasing just left preset in middle no heating of output transistors
thanking you
michelle

hi michelle,

do you have step driver to class H amp? i saw your step driver were very simple.

regards,
rosa

 

[engel]

ehran,
can you please post the schematic please.

 

[erhan739]

ı haven't scematic for this circuit, already circuit is quite simple. but if ıfind ı'll update.

 

[eesbiboi]

ı haven't scematic for this circuit, already circuit is quite simple. but if ıfind ı'll update.

erhan,

i have a bit of a problem with the amp,
i loaded it with 2 12inch speakers...sound was great....
but when i loaded it 4 15inch, 8ohms each speakers, clicking sounds starts to arise even with no audio signal on it...even with 2 15inch speakers 8 ohms each clicking sound still is audioble...
what could be the cause???

set up:
10 pairs of output power transistors
psu: 55 0 55vac trafo 4 10,000uf caps/100v

thanks
ees

 

[erhan739]

you must check 15v zener diodes's voltages it must be constant. you can replace with 3k9 or 3k3 5w regulating resistors. maybe this time problem solved

 

[eesbiboi]

you must check 15v zener diodes's voltages it must be constant. you can replace with 3k9 or 3k3 5w regulating resistors. maybe this time problem solved

can i have separate regulated psu +/- for the ic instead of taking voltage from the main psu?...

 

[erhan739]

just be sure 15v is stable. and you can post your project's images.

 

[eesbiboi]

just be sure 15v is stable. and you can post your project's images.

ok then...

thanks
ees

 

[eesbiboi]

i still dont know how to upload pics to the thread,...posting pictures wont be easy for me now...

 

[engel]

go advance
manage attachment
add files
select files
insert

 

[eesbiboi]

here are pictures of the project...

 

[erhan739]

Here İs the schematİc

 

[irvynejay]

thanx for the schem erhan,,is it possible to add step driver on this amp?

schematic too blur cant see it clearly

 

[rhodrich]

ees what store in cebu you buy the opamp?

 

[rosa]

ees what store in cebu you buy the opamp?

you can buy at advance electronics, ac/dc and tommys electronics

 

[A square]

hello sir

can u pls post clear pic of schematic.....

thank u sir...

 

[eesbiboi]

rhodrich
i oftenly buy components at advance electronics...

erhan, sir, the schema seems unclear...can u post a more clear one???...

regards,
ees...